Team:HKU-HKBU/Motor Preliminary Trials

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Binding performance test using a membrane

Before the final version of motor that was using the photolithography photoetching method based on silicon, we did several trials to approach the qualified micromotor with the characteristics as: 1.It should be shaped into very refined tiny structures. 2.It should be able to undergo chemical modifications to coat the biotin on the surface. 3.It should be rigid and stable in the bacterial medium. Here we report our trials by using Immobolin-P membrane which is easy to cut and coat with biotin.

Trial 1.The fragmentation of the Immobolin-P membrane with the help of a mini-homogenizer

The Immobolin-P membrane was first made wet and consequently homogenized with a mini-homogenizer.

Fig 1. The fragmentation of the Immobolin-P membrane with the help of a mini-homogenizer

Trial 2.The fragmentation of the Immobolin-P membrane with a generated shearing force by moistening and followed by vortexing

The Immobolin-P membrane was first moistened, then it was put into a 10ml centrifugation tube. The tube was then totally filled with glass beads, and undergo vortexing subsequently.